fix on undef TIMERS

[stefanbode]

fix compilation error

Description:

Related issue (if applicable): fixes #

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.4.9
• The code change is tested and works with Tasmota core ESP32 V.2.0.14
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass

[stefanbode]

Confirmed that all builds from @Jason2866 are working now. Ready to submit.

[Jason2866]

@stefanbode Nearly. Still compile errors when scripter is enabled

Linking .pio/build/tasmota-titanium/firmware.elf
/home/runner/.platformio/packages/toolchain-xtensa/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: .pio/build/tasmota-titanium/src/tasmota.ino.cpp.o:(.text._Z16DeepSleepEnabledv+0x8): undefined reference to `GetRule(unsigned int)'
/home/runner/.platformio/packages/toolchain-xtensa/bin/../lib/gcc/xtensa-lx106-elf/4.8.2/../../../../xtensa-lx106-elf/bin/ld: .pio/build/tasmota-titanium/src/tasmota.ino.cpp.o:(.text._Z16DeepSleepEnabledv+0x1f): undefined reference to `GetRule(unsigned int)'

[stefanbode]

Ok, fix submitted. I do not understand why my checks on titanium, and so on all worked. Anyhow. Lets hope this was the last change